Catheter with stacked spine electrode assembly
A catheter comprising an elongated catheter body, an electrode array distal of the catheter body, the array having a mounting member and at least first and second spine supports. Each spine support includes a base having a planar configuration, and a plurality of spines extending from the base, wherein the first base extends in a first plane and the second base extends in a second plane different from the first plane in the mounting member.
1. A catheter comprising:
an elongated catheter body;
an electrode array distal of the catheter body, the array comprising:
at least first and second spine supports, each spine support including a base having a planar configuration, and a plurality of spines extending from the base; and
one or more electrodes carried on the spines,
wherein the first base extends in a first plane and the second base extends in a second plane different from the first plane.
2. The catheter of claim 1 , wherein the first and second planes are parallel.
3. The catheter of claim 1 , wherein the first and second planes are nonparallel.
4. The catheter of claim 1 , wherein each spine includes a proximal portion and a distal portion, and the distal portions of the array extend in a common third plane.
5. The catheter of claim 4 , wherein the third plane is parallel with at least one of the first and second planes.
6. The catheter of claim 4 , wherein the distal portions of the array are linear.
7. The catheter of claim 6 , wherein the distal portions of the array are parallel with each other.
8. The catheter of claim 1 , wherein the electrode array includes a stem having a lumen in which the bases of the at least first and second spine supports are fixed.
9. The catheter of claim 1 , wherein each spine has a free distal end.
10. The catheter of claim 1 , wherein each spine has a distal end that is connected to at least one distal end of another spine.
11. A catheter comprising:
an elongated catheter body;
an electrode array distal of the catheter body, the array comprising:
a mounting member having a proximal end attached distally of the catheter body; at
least first and second spine supports, each spine support including a base having a planar configuration, and a plurality of spines extending from the base;
a nonconductive covering on each spine; and
one or more electrodes carried on the spines,
wherein the first base is fixed in a lumen of the mounting member at a first plane and the second base is fixed in the lumen at a second plane different from the first plane.
12. The catheter of claim 11 , wherein the first and second planes are parallel.
13. The catheter of claim 11 , wherein the first and second planes are nonparallel.
14. The catheter of claim 11 , wherein each spine includes a proximal portion and a distal portion, and the distal portions of the array extend in a common third plane.
15. The catheter of claim 14 , wherein the third plane is parallel with at least one of the first and second planes.
16. The catheter of claim 14 , wherein the distal portions of the array are linear.
17. The catheter of claim 16 , wherein the distal portions of the array are parallel with each other.
18. A catheter comprising:
an elongated catheter body;
an electrode array distal of the catheter body, the array comprising:
a mounting stem having a proximal end attached distally of the catheter body;
at least first and second spine supports, each spine support including a base having a planar configuration, and a plurality of spines extending from the base;
a nonconductive covering on each spine; and
one or more electrodes carried on the spines,
wherein the first base is fixed in a lumen of the stem at a first plane and the second base is fixed in the lumen of the stem at a second plane different from the first plane, wherein each spines has a distal linear portion, and the distal linear portions of the array are parallel with each other.
19. The catheter of claim 18 , wherein the distal linear portions of the array are parallel with a longitudinal axis of the stem.
20. The catheter of claim 18 , wherein the plurality of spines ranges between about two and six.